印度尼西亚已开始测试干冰技术以驱散森林和泥炭地火灾引发的有毒雾霾，官员报告称能见度在苏门答腊南部机场附近有所改善。
Indonesia has begun testing dry ice technology to disperse toxic haze from forest and peatland fires, with officials reporting improved visibility near an airport in South Sumatra.
国家灾害管理局周四表示，这些试验利用大气改造技术驱散烟雾，无需依赖雨云，据国家新闻社安塔拉报道。
The National Disaster Management Agency said Thursday that the trials use atmospheric modification techniques to disperse smoke without requiring rain clouds, according to state news agency Antara.
该局数据、信息和通信中心代理主任贝尔顿·S·P·潘贾坦表示，该方法直接针对浓烟，不同于传统的云雾催化，后者使用盐粒子刺激降雨。他解释说，森林火灾会形成逆温层，将有害烟雾困在地面附近。
Berton S.P. Panjaitan, acting head of the agency's data, information and communication center, said the method targets dense smoke directly, unlike conventional cloud seeding, which uses salt particles to stimulate rainfall. He explained that forest fires create atmospheric inversion layers that trap hazardous smoke close to the ground.
应对团队释放直径3毫米、温度为零下75摄氏度（零下103华氏度）的干冰颗粒，以破坏这些逆温层并帮助烟雾扩散。
Response teams release 3-millimeter dry ice granules at minus 75C (minus 103F) to disrupt these layers and help smoke disperse.
周四，一架塞斯纳卡瓦恩飞机在4500英尺高度执行了两次飞行，在帕勒邦苏丹·马哈末·巴达鲁丁二世国际机场上空投放了1600公斤（3527磅）干冰。
A Cessna Caravan aircraft flew two flights Thursday at an altitude of 4,500 feet, releasing 1,600 kilograms (3,527 pounds) of dry ice over Palembang's Sultan Mahmud Badaruddin II International Airport.
灾害管理局表示，操作后能见度从650米（2133英尺）跃升至2800米（9186英尺）。
The disaster agency said that following the operation, visibility jumped from 650 meters (2,133 feet) to 2,800 meters (9,186 feet).
这些试验将持续到周日，届时当局将评估是否将该技术推广至其他受影响的省份。
The trials are set to continue through Sunday before authorities assess possible expansion to other affected provinces.